And with the exception of Nissan, every EV on sale today features liquid battery cooling as part of the battery management system. AdvertisementĪs it turns out, an EV's battery pack is subject to a more stringent warranty than the rest of the car-federal law requires automakers to guarantee packs for eight years, or 100,000 miles (160,000 km), at a minimum. Nissan eschewed liquid cooling for the Leaf's pack, and the EV first went on sale in model year 2012, so there has been enough time for some early Leafs to lose up to 20 percent of their pack's storage capacity. The Nissan Leaf bears a lot of responsibility for the idea that EV batteries don't last. The lithium-ion cells used by EVs aren't really affected by the memory effect, but they can degrade storage capacity if subjected to too many fast charges or if their thermal management isn't taken seriously. It's an understandable concern many of us are used to using consumer electronic devices powered by rechargable batteries that develop what's known as "memory." The effect is caused by repeatedly charging a cell before it has been fully depleted, resulting in the cell "forgetting" that it can deplete itself further. I won't dwell on that today, but the next-most common point of confusion about EVs has to be the traction battery's longevity, or potential lack thereof. The top concern is probably range anxiety, a fear that is usually dispelled as someone gets used to waking up to a full battery every morning. That means there are an awful lot of misconceptions out there when it comes to these newfangled machines. But here in the US, EVs only accounted for 3 percent of the 15 million new vehicles sold in 2021. It's often said that the easiest way to get people to buy an electric vehicle is to let them test-drive one. Aranga87/Getty Images reader comments 579 with
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |